in support of national security and defense, and that is their exclusive mission, and the most -- well the executive order actually signed by president reagan which defines the roles, and missions of all the intelligence agencies makes it perfectly clear what their mission is. that's exactly what they do. >> and what their authority is. >> let's listen to what some of what general alexander had to say yesterday. >> there ma not been a mass casualty here in the u.s. since 2001. that's not by luck. they didn't stop hating us. they didn't say that they were going to just forget this. they continued to try. >> he seems almost upset by these leaks. to what extent do you think u.s. intelligence has been weakened out all? >> obviously there's been enormous dabbling. this is an activity, intelligence activities, normally con ducked in secret, in fact highly secret and by making clear some of our capabilities and some of what we've done causes people on the other side to not communicate the way they normally would communicate, to take other actions, and it, you know, it provides them with ammun